Governor for internal-combustion engines.



W. M. POWER. GOVERNOR FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED APR. 15, 1905.

Patented Nov. 9, 1909.

2 SHEETSSHEET 1.

Inventor Attorneys.

W. M. POWER. GOVERNOR FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILEDAPR. 15, 1905.

939,923. I Patented Nov. 9, 1909.

2 SHEETSSHBET Z.

7 i g 4 Q g f 3 45 aunt! 1 5 m.

'37 33 J5, J0) J6 /7 52 31 J9 W s fi Witnesses: X Inventor Attorneys.

New York,

WILLIAM M. POWER, OF PORTCHES'TER, NEW YORK.

GO VERNOR FOR INTERNAL--COMIBUSTION ENGINES.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed April 15, 1905. Serial No. 255,748.

To all whom it may concern."

Be it known that I, WVILLIAM M. POWER, a citizen of the United States,residing in Portchester, county of VVestchester, State of have inventeda certain new and useful Improvement in Governors forInternal-Combustion Engines, of which the following is a specification.

The object I have in view is the production of a governor, forcontrolling the speed of internal combustion engines which are subjectto varying load, and for varying the tor may be varied speed at will. Iattain these objects by the mechanism illustrated in the accompanyingdrawings, in which,

Figure 1 is a view partly in section of an internal combustion engine,showing one embodiment of my invention applied thereto. Fig. 2 is a viewpartly in plan and partly in section of the governor proper. Fig. 3 is asectional view taken on the lines 3-3 of Fig. v2. Fig. 4 is alongitudinal section of the governor valve the view beingtaken on thelines H of Fig. 5, and Fig. 5 is a vertical section thereof taken on thelines -5 of Fig. 4.

In all the views like parts are designated by the same referencecharacters.

In carrying out my invention I provide a means for keeping the speed ofthe motor constant or varying it at will by controlling the inlet of themixture. This is controlled by a throttle valve,.t he position of whichis varied and determined by the flow of the circulating water. The flowof Water will be determined by the speed of the engine, and will varywith such speed, being due to a pump operated by the motor. The speed ofthe motor may be controlled within limits by varying the pressure ofwater acting upon thethrottle valve.

In the drawings 1 represents a motor of the internal combustion type. Asshown this motor has a single cylinder, but it is to be understood thatthe character of the moas necessary or desirable. The motor is providedwith a water jacket indicated at 2. A pump?) is driven in time with theengine, conventional mechanism being shown consisting of gear wheels 4,5, on the pump shaft and engine shaft respectively for attaining thisobject. The pump may be a rotary or reciprocating pump whichever ispreferred in practice as the character of the pump does not affect theinvention. The circulating system comof the casing 13 is inserted Iprises a pipe 6 leading from the pump to the water jacket and a pipe 7leading from the water jacket to a tank 8. A pipe 9. leading from thetank to the pump completes the circulating system. In connection withthe engine thus described is employed a carbureter l0 connecting throughan inlet pipe 11 to the engine. The parts described are those commonlyemployed in'commercial use.

In connection with the mechanism already described I employ a governorindicated in Fig. l by the numeral 12. The details of the I governor areillustrated in the other views. The governor comprises a casing 13secured to a base 14, by bolts 15. At the base of the casing 13 is achamber 16. W ithin this chamber is a diaphragm 17. The draphragm may beconveniently retained. 1n place by being clamped between the casing 13and the base 14 by means of bolts 15. The base '14 contains a passage'18 extending throughout its length, the portions of the base adjacentto the ends of the passages being extended to form nipples or couplings19, to which pipes may be secured. A branch passage extends between thechamber 16 and the passage 18 below the diaphragm 17. Within the upperportion a second casing 21. This casing may have a flange through whichsecuring bolts 23 may pass, for attaching it to the casing 13. Thecasing 21 is smaller than the casing 13 so that an annular passage 24 isprovided between the two. This passage 24 communicates with the outsidethrough an extension passage 25 formed in the casing 13. Thisportion ofthe casing may be prov ded with a flange 26 for attachment to a pipeforming the exit of the carbureter 10. The upper portion of the casing21 is contractedytornxing an exit pipe 27, and the ends of this pipe maybe provided with ears 28 for attachment to the pipe 11 connected to theengine.

Within the casing 21 is mounted a throttle valve 29. This valve is cupshaped as shown, and is provided with a central hollow boss 30' forattachment to the hft ng stem 31. This stem passes through an open ingformed in the casing 13 and 111 order to form an elongated bearing forthe stem a hollow support 32 is formed upon the cas ng 13. The throttlevalve is provided with ports 33 which when the valve is seated willregister with ports 34 formed in the inner casing :21. Additional ports35 may be formed in this casing above the upper edge of the valve, suchports being adapted to be closed by the raising of the valve'. A spring36 within the chamber 21 is used for seating the valve. Small ports 37formed in the bottom of the valve permit an equalization of pressurebelow the valve 'so that a vacuum will not be formed when the valve islifted. Other ports'38 formed in the casing 13 connect the upper part ofthe diaphragm chamber 16 with the external air, so that pressure willbeequalized.

I The governor is located between the carbureter 10 and the entrancepipe 11 of the engine as already described, the carbureter beingconnected to the inlet pipe 25 and the pipe 11 to the outlet pipe 27.The valve 29 is shown in Fig.3 in the open position. The

ports 34 and 35 are of suflicient area to permit the mixture to passthrough the apparatus in the desired amount; the valve being water beingvaried opened or closed will vary the amount of mixturefiowing from thecarbureter to the engine as will be obvious.

In connection'with the governor already described means is provided foradmitting e 18, the pressure of the according to the speed of the motor.In Fig. 1 a pipe 39 is connected to the-pipe 6 the pipe 39 being ofconsiderably smaller capacity than the pipe 6 so that only a smallportion of water flowing from the pump will be diverted or shuntwater tothe passa ed to one side, and passed through this pipe. The pipe 39connects with the four way cook 'ment to the pipes 39, 41, 42, 43,respectively,

the nipples 45 and 46 being arranged opposite to each other. Within thebody 44 is located a valveastemjl having a squared extremity 52, forattachment of an operating lever 53 (see Fig. 1.) The stem isprovidedwith ports 55, 56, in line with the passages 49, 50, respectively. Theseports are arranged at an angle of 45 to each other as shown in Fig. 5.By this construction the How of Water through the regulator can bevaried. By turning the valve so that the passage through the pipes 39and 41 will be entirely open, the passage through the pipes 42 and 43'will be closed. When in this p0? sition, the maximum amount of pressurewill exist within the passage 18 and the diaphragm 17 will be elevated,entirely closing the throttle valve, solong as the pressure issufiicient to compress the spring 36. By

seams varying the position of the valve 40, the inlet through the pipes39 and 41 will be gradually closed and the outlet to the pipes 42, and43 will be gradually opened, thus reliev ing the pressure through thepassage 18. The turning of the valve 40 may be continued until the pipes39 and 41 are entirely closed and the pipes 42 and 43 entirely opened atwhich time there will be no pressure within the chamber 18. By employingthis four way valve very delicate adjustment can be secured, and themotor can be controlled within very close limits.

In operation, the pressure of the water within the diaphragm chamberwill vary according to the speed of the pump, and motor,- and with theextent of opening of the four way cock. The cock being set for adefinite amount of opening, the amount of water passing through it willdepend upon the speed of the pump and the pressure of the spring in thethrottle valve,'these two forces being correlative. As the speed of thepump increases the pressure rises, and the valve is closed reducing theamount of mixture admitted to the engine. As the speed of the engine isreduced by such action the pressure is reduced and the valve is opened,thus admitting more mixture.

Having now described my invention, what I claim and desire to secure byLetters Patcut, is

1. In a governor for internal combustion engines, the combination withthe circulatindependently of the speed of the engines.

2. In a overnor for ex losive en ines the .combination with a casing, adiaphragm chamber therein, a base having a water passage, nipplescommunicating with the ends 1 of\ the water passage, a diaphragm clampedbetween the casing and the base and within the diaphragm chamber, avalve casing within the casing, the said valve-casing having a flangesecured to the casing, a throttle valve within the valve-casing, portsformed within the valve and valve-casing, a stem on the valve extendinginto the diaphragm chamber, and engaging with the diaphragm,

a hollow boss formed on the valve and engaging with the stem, and agu1de secured to the casing and surroundin thestem.

3. In a governor for exp osive engines, the

combination with the en me of a pump and the circulating system 0 thewater acket, a

governor arranged between the carbureter the inlet thereto is opened,and by means of 10 and the inlet valve of the engine, the said 1 whichthe pressure Within the regulator may goiernor including a throttlevalve for the be controlled.

mixture, a spring for opening the valve and This specification signedand witnessed a diaphragm for closing it, and tubular conthis tenth dayof April, 1905.

nections between the circulating system and WVILLIAM M. POWER.

the governor, the said connections including a four-Way cock, by meansof which the outi Witnesses: I let from the diaphragm may be cut off asl LEONARD H. DYER, J N0. R0131. TAYLOR.

